This garlic butter turkey tenderloin and sweet potatoes is an easy, comforting centerpiece for Thanksgiving dinner. I love that it all roasts in one pan, so the turkey stays juicy while the sweet potatoes turn tender and caramelized.
Why You’ll Love This Garlic Butter Turkey Tenderloin
This dish brings together savory garlic butter, tender turkey, and naturally sweet roasted potatoes in a straightforward meal that feels special without taking over the kitchen. The ingredients are simple, the prep is quick, and one pan makes cleanup easier during a busy holiday dinner.
Garlic Butter Turkey Tenderloin Ingredients & Substitutions
- 2 turkey tenderloins, about 1 1/2 to 2 pounds total
- 2 pounds sweet potatoes, peeled and cut into 1-inch cubes
- 4 tablespoons unsalted butter, melted
- 4 garlic cloves, finely minced
- 1 tablespoon olive oil
- 1 teaspoon dried thyme
- 1 teaspoon dried rosemary, crushed
- 1 teaspoon paprika
- 1 teaspoon kosher salt, divided
- 1/2 teaspoon black pepper
- 2 tablespoons chopped fresh parsley, for serving
Fresh thyme or rosemary can replace the dried herbs. You can also use peeled Yukon Gold potatoes in place of some or all of the sweet potatoes. If your turkey tenderloins vary in thickness, tuck the thinner ends under so they cook more evenly.
Step-by-Step Instructions to Make Garlic Butter Turkey Tenderloin
1. Heat the oven and prepare the pan
Heat the oven to 400°F. Lightly oil a large rimmed baking sheet or roasting pan. Pat the turkey tenderloins dry with paper towels.
2. Season the sweet potatoes
Add the sweet potato cubes to the pan. Toss them with the olive oil, half of the salt, and a pinch of black pepper, then spread them in an even layer around the pan.
3. Make the garlic butter
Stir the melted butter, minced garlic, thyme, rosemary, paprika, remaining salt, and black pepper together in a small bowl. Brush the mixture over the turkey tenderloins, reserving a little to coat the potatoes.
4. Roast until cooked through
Set the turkey among the sweet potatoes and brush the potatoes with the remaining garlic butter. Roast for 25 to 35 minutes, turning the potatoes once, until the turkey reaches 165°F at its thickest point and the potatoes are fork-tender. Cooking time depends on the size and thickness of the tenderloins, so begin checking early.
5. Rest and serve
Transfer the turkey to a cutting board and let it rest for 5 to 10 minutes. Slice across the grain, scatter parsley over the turkey and potatoes, and serve warm.
Tips for Success
- Use an instant-read thermometer to check the turkey in its thickest section. Remove it from the oven when it reaches 165°F.
- Cut the sweet potatoes into similarly sized pieces so they roast at the same pace.
- Leave space between the potatoes when possible. A crowded pan can make them steam instead of brown.
- If the potatoes need more time after the turkey is done, move the turkey to a plate to rest and return the potatoes to the oven.
- Resting the turkey before slicing helps keep the meat juicy.
Variations of Garlic Butter Turkey Tenderloin
For a brighter flavor, add a teaspoon of lemon zest to the garlic butter. A pinch of red pepper flakes adds gentle heat, while a little sage makes the dish especially fitting for a Thanksgiving table. You can also add halved Brussels sprouts to the pan, keeping the pieces small enough to roast alongside the potatoes.
Serving Suggestions: What to Pair with Garlic Butter Turkey Tenderloin
Serve this turkey with green beans, roasted Brussels sprouts, or a crisp seasonal salad. For a fuller holiday spread, add dinner rolls, cranberry sauce, and a simple pan gravy. The sweet potatoes already make the meal satisfying, so a light vegetable side works especially well.
Storage & Reheating Instructions
Cool leftovers, then store the sliced turkey and sweet potatoes in an airtight container in the refrigerator for up to 4 days. Reheat covered in a 325°F oven with a spoonful of broth or water until warmed through, or microwave individual portions in short intervals. Avoid overheating the turkey, which can dry it out.
Memories Made Around the Table
I like serving this dish when I want the comfort of a holiday meal without juggling too many pots and pans. The garlic and herbs make the kitchen smell welcoming, and I can bring the roasting pan straight to the table for an easy, relaxed dinner. It’s a lovely way to share a Thanksgiving-inspired meal, even on an ordinary evening.
FAQs
Can I prepare the turkey tenderloin ahead of time?
Yes. Mix the garlic butter and season the turkey a few hours ahead, then cover and refrigerate it. Let the turkey sit at room temperature for about 15 minutes while the oven heats, and roast it just before serving.
How do I know when turkey tenderloin is done?
Check the thickest part with an instant-read thermometer. The turkey is ready when it reaches 165°F. The exact roasting time varies with the tenderloin’s size and thickness.
Can I use regular potatoes instead of sweet potatoes?
Yes. Yukon Gold or red potatoes work well. Cut them into roughly 1-inch pieces, and give them extra roasting time if they are not tender when the turkey is done.
Can I make this recipe on a crowded holiday schedule?
Yes. Chop the sweet potatoes and mix the garlic butter earlier in the day, then keep them covered and refrigerated separately. Assemble everything on the pan just before roasting.
Final Thoughts
Garlic butter turkey tenderloin with sweet potatoes is a simple, flavorful centerpiece for Thanksgiving dinner or any cozy family meal. With one pan, familiar ingredients, and a reliable temperature check, it’s easy to serve a meal that feels both comforting and special.
Garlic Butter Turkey
Equipment
- 1 Large rimmed baking sheet or roasting pan
- 1 Small bowl
- 1 Pastry Brush
- 1 Instant-read thermometer optional, for checking doneness
Ingredients
- 2 turkey tenderloins about 1 1/2 to 2 pounds total
- 2 pounds sweet potatoes peeled and cut into 1-inch cubes
- 4 tablespoons unsalted butter melted
- 4 cloves garlic finely minced
- 1 tablespoon olive oil
- 1 teaspoon dried thyme
- 1 teaspoon dried rosemary crushed
- 1 teaspoon paprika
- 1 teaspoon kosher salt divided
- 0.5 teaspoon black pepper
- 2 tablespoons fresh parsley chopped, for serving
Instructions
- Heat the oven to 400°F. Lightly oil a large rimmed baking sheet or roasting pan. Pat the turkey tenderloins dry with paper towels.
- Add the sweet potato cubes to the pan. Toss them with the olive oil, half of the salt, and a pinch of black pepper, then spread them in an even layer around the pan.
- Stir the melted butter, minced garlic, thyme, rosemary, paprika, remaining salt, and black pepper together in a small bowl. Brush the mixture over the turkey tenderloins, reserving a little to coat the potatoes.
- Set the turkey among the sweet potatoes and brush the potatoes with the remaining garlic butter. Roast for 25 to 35 minutes, turning the potatoes once, until the turkey reaches 165°F at its thickest point and the potatoes are fork-tender. Cooking time depends on the size and thickness of the tenderloins, so begin checking early.
- Transfer the turkey to a cutting board and let it rest for 5 to 10 minutes. Slice across the grain, scatter parsley over the turkey and potatoes, and serve warm.